/Engine/Source/Editor/UnrealEd/Public/SEditorViewportToolBarMenu.h
Widget that opens a menu when clicked
class SEditorViewportToolbarMenu : public [SCompoundWidget](API\Runtime\SlateCore\Widgets\SCompoundWidget)
FName
MenuName
Name of tool menu
TWeakPtr< class...
ParentToolBar
Parent tool bar for querying other open menus